Affinity Chromatography (AC) is a separation technique utilizing specific biological interactions. When sample passes through the stationary phase, target biomolecules bind to ligands while impurities elute, achieving purification. AC is widely used for proteins, enzymes, and other macromolecules due to its simplicity, speed, and utility in structural/functional studies.
The GST (Glutathione S-transferase) tag is a common fusion partner in genetic engineering, enhancing soluble expression and activity retention of target proteins. Glutathione Singarose is an affinity resin prepared by coupling glutathione ligands to an agarose matrix, specifically designed for purifying GST and GST-fusion proteins with single-step high-purity elution.